Air conditioner



FIG. 1 is a front, right side, perspective view of an air conditioner showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view.

The parallel fine lines and curves shown in all the drawings indicate the relief of surface of the product.

The broken lines in the drawings illustrate portions of the air conditioner which form no part of the claimed design. 

CLAIM The ornamental design for an air conditioner, as shown and described. 